package hive.ch1.test1;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

public class MRCountReducer extends Reducer<Text, IntWritable, Text, IntWritable> {

    private final IntWritable valueOut = new IntWritable();

    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException {
        int accessCount = 0;
        for (IntWritable value :
                values) {
            accessCount++;
        }

        valueOut.set(accessCount);

        context.write(key, valueOut);
    }
}
